## Warning in log(MZ1_max_gfp): NaNs produced
## Warning in log(MZ1_max_gfp): NaNs produced
## Warning: Removed 40 rows containing missing values (geom_point).
## Warning in log(MZ1_max_gfp): NaNs produced
## Warning in log(MZ1_max_gfp): NaNs produced
## Warning: Removed 18 rows containing missing values (geom_point).